/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef __KVM_MM_H__
#define __KVM_MM_H__ 1

#include <linux/spinlock.h>
/*
 * Architectures can choose whether to use an rwlock or spinlock
 * for the mmu_lock.  These macros, for use in common code
 * only, avoids using #ifdefs in places that must deal with
 * multiple architectures.
 */

#ifdef KVM_HAVE_MMU_RWLOCK
#define KVM_MMU_LOCK_INIT(kvm)		rwlock_init(&(kvm)->mmu_lock)
#define KVM_MMU_LOCK(kvm)		write_lock(&(kvm)->mmu_lock)
#define KVM_MMU_UNLOCK(kvm)		write_unlock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_LOCK(kvm)		read_lock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_UNLOCK(kvm)	read_unlock(&(kvm)->mmu_lock)
#else
#define KVM_MMU_LOCK_INIT(kvm)		spin_lock_init(&(kvm)->mmu_lock)
#define KVM_MMU_LOCK(kvm)		spin_lock(&(kvm)->mmu_lock)
#define KVM_MMU_UNLOCK(kvm)		spin_unlock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_LOCK(kvm)		spin_lock(&(kvm)->mmu_lock)
#define KVM_MMU_READ_UNLOCK(kvm)	spin_unlock(&(kvm)->mmu_lock)
#endif /* KVM_HAVE_MMU_RWLOCK */

#endif /* __KVM_MM_H__ */
